Zolan's species

From Memory Alpha, the free Star Trek reference.

Zolan's species are a spacefaring humanoid species distinguished by rounded forehead structures and wide enlarged nostrils, and are native to the Alpha or Beta Quadrant.

Members of this species include Zolan and Okalar. (DS9: "Cardassians", "The Abandoned")

Another member of this species was present during an auction held in Quark's bar in late 2373. He was sitting between a Bolian Waiter and Ensign Kelly. (DS9: "In the Cards")